WO2018066336A1 - Agricultural greenhouse - Google Patents

Abstract

The purpose of the present invention is to provide an agricultural greenhouse capable of efficient ventilation in both open and closed states of a curtain. In this agricultural greenhouse (1), the curtain (20) is configured to be able to change between a closed state in which the curtain reduces light that passes through a roof (100) and enters the inside of an outer shell (10), and an open state in which the curtain does not reduce light that passes through the roof (100) and enters the inside of the outer shell (10). A first intake fan (31a) is disposed above the curtain (20) in the closed state and a second intake fan (31b) is disposed below the curtain (20) in the closed state. A first exhaust fan (32a) is disposed above the curtain (20) in the closed state and a second exhaust fan (32b) is disposed below the curtain (20) in the closed state.

Description

Agricultural house

The present invention relates to an agricultural house.

Conventionally, there is an agricultural house provided with a fan for ventilation and a curtain for blocking the irradiation of sunlight to the internal space in order to adjust the cultivation environment of the plant body (see, for example, Patent Document 1). In a conventional agricultural house, when the temperature of the internal space becomes equal to or higher than a predetermined temperature, the ventilation fan is operated to perform ventilation, thereby reducing the temperature of the internal space. Moreover, the conventional agricultural house is equipped with the curtain which covers the upper direction of internal space, and has interrupted sunlight irradiation by making a curtain into a closed state. In other words, the day length (daytime length) in the internal space is adjusted by opening and closing the curtain.

However, in the above-described conventional agricultural house, the airflow of the fan varies greatly depending on the open / close state of the curtain, making it difficult to efficiently ventilate both the open and closed states of the curtain.

JP 2014-103856 A

An object of the present invention is to provide an agricultural house capable of efficiently ventilating both in an open state and a closed state of a curtain.

The agricultural house according to an aspect of the present invention includes an outer shell, a plurality of intake fans, a plurality of exhaust fans, and a curtain. The outer shell has a first wife face and a second wife face facing each other, and the roof is covered with a translucent member. The plurality of intake fans are provided on the first wife surface and send outside air into the outer shell. The plurality of exhaust fans are provided on the second end face and exhaust the air in the outer shell to the outside of the outer shell. The curtain is disposed in the outer shell so as to face the roof. The curtain is between a closed state in which light incident on the outer shell through the roof is dimmed and an open state in which light incident on the outer shell through the roof is not dimmed. It is configured to be deformable. Of the plurality of intake fans, one or more first intake fans are disposed above the curtain in the closed state, and one or more second intake fans are in the closed state. It is arranged below the curtain. Among the plurality of exhaust fans, one or more first exhaust fans are arranged above the closed curtain, and one or more second exhaust fans are more than the closed curtain. It is arranged below.

FIG. 1 is a schematic perspective view illustrating a configuration of an agricultural house according to the first embodiment. FIG. 2A is a vertical sectional view showing the intake side of the agricultural house when the curtain is closed. FIG. 2B is another sectional view in the vertical direction showing the exhaust side of the agricultural house when the curtain is closed. FIG. 3A is a vertical sectional view showing the intake side of the agricultural house when the curtain is closed. FIG. 3B is another sectional view in the vertical direction showing the exhaust side of the agricultural house when the curtain is opened. FIG. 4A is a horizontal sectional view of the agricultural house when the curtain is closed. FIG. 4B is a horizontal sectional view of the agricultural house when the curtain is opened. FIG. 5 is a vertical sectional view showing the intake side of the agricultural house of Modification 1 of the above. FIG. 6 is a horizontal cross-sectional view of the agricultural house of Modification 2 of the above. FIG. 7 is a vertical cross-sectional view showing the intake side of the agricultural house of Modification 2 of the above. FIG. 8 is a horizontal cross-sectional view of the agricultural house of Modification 3 of the above. FIG. 9 is a vertical cross-sectional view showing the intake side of the agricultural house of Modification 3 of the same. 10A and 10B show a configuration of an agricultural house according to the second embodiment. FIG. 10A is a vertical sectional view showing the intake side of the agricultural house when the curtain is closed. FIG. 10B is another cross-sectional view in the vertical direction showing the exhaust side of the agricultural house when the curtain is closed. FIG. 11A is a vertical cross-sectional view showing the intake side of the agricultural house when the curtain of Modification 1 is closed. FIG. 11B is another vertical sectional view of the agricultural house showing the exhaust side when the curtain of the first modification example is closed.

The following embodiments generally relate to agricultural houses. More specifically, the present invention relates to an agricultural house provided with a curtain that blocks incident light.

The agricultural house of each embodiment described below assumes an agricultural house that grows plants. There is no restriction | limiting in particular in the kind of plant body, It can select from fruit vegetables, beans, fruits, flower buds, leaf vegetables, etc. Leafy vegetables are represented by spinach, komatsuna, lettuce, cabbage, Chinese cabbage and the like. Fruit vegetables are represented by tomato, cucumber, eggplant and the like.

In each embodiment described below, a plant is cultivated in an agricultural field provided in an agricultural house. Moreover, although each embodiment demonstrates soil cultivation as an example, the technique of each embodiment is applicable even if it is isolation floor cultivation using a root-proof permeation sheet etc.

(Embodiment 1)
As shown in FIG. 1, the agricultural house 1 according to the first embodiment includes an outer shell 10 composed of a frame 11 as a structural material and a covering 12 supported by the frame 11.

The frame 11 is formed of a metal pipe or rod (wire) having a diameter of 10 [mm] or more and 50 [mm] or less. As the metal forming the frame 11, aluminum or iron whose surface is subjected to rust prevention treatment such as galvanization is used. The frame 11 is formed in an inverted U-shape, and integrally includes two support columns 111 arranged side by side and a connecting unit 112 that connects one end of each of the two support columns 111. . Although the connection part 112 has shown the example formed in the smooth arc shape, you may form in the reverse V shape which attached | attached the end of each of two straight lines.

The covering body 12 is formed of a translucent member. The covering 12 uses a synthetic resin film having translucency (desirably transparent). The thickness dimension of the synthetic resin film used for the covering 12 is generally 0.1 [mm] or more and 3 [mm] or less, but may deviate from this range. Moreover, the synthetic resin film used for the covering 12 is selected from polyvinyl chloride, polyolefin, fluororesin and the like. Note that the covering 12 may be a glass having translucency.

The plurality of frames 11 are arranged in a direction intersecting with the surrounding surface. The covering body 12 is installed on the plurality of frames 11 in a state where the plurality of frames 11 are arranged. And the outer shell 10 of the agricultural house 1 is covered with the covering 12 over the entire circumference of a virtual three-dimensional object formed by arranging a plurality of frames 11.

The agricultural house 1 includes a roof 100 having a semicircular cross section, two side faces 101 and 102 that support the roof 100 and face each other, and two end faces 103 and 104 that are orthogonal to the two side faces 101 and 102 and face each other. And are integrated. Therefore, the agricultural house 1 is formed in an inverted U shape in a cross section orthogonal to the direction connecting the two end faces 103 and 104. The dimension in the direction connecting the two end faces 103 and 104 is designed to be sufficiently larger than the direction connecting the two side faces 101 and 102. Hereinafter, the direction connecting the two end faces 103 and 104 is referred to as a first direction X1 (depth direction), and the direction connecting the two side faces 101 and 102 is referred to as a second direction X2 (width direction). Further, the side surface 101 is referred to as a first side surface 101, the side surface 102 is referred to as a second side surface 102, the end surface 103 is referred to as a first end surface 103, and the end surface 104 is referred to as a second end surface 104.

The outer shell 10 of the agricultural house 1 surrounds the farm field 40. In the field 40, a plurality of ridges 41 are formed which are raised more than other parts. The longitudinal direction of the flange 41 is along the first direction X1, and a plurality of flanges 41 are formed in the second direction X2. A plant body 50 is planted in each of the plurality of ridges 41 (see FIGS. 2A and 2B).

As shown in FIG. 1, the agricultural house 1 includes a dimming curtain (ceiling curtain) 20 inside the outer shell 10. In the second direction X2, the curtain 20 is deformed between a closed state (expanded state) covering the upper portion of the agricultural field 40 and an open state (converged state) opening the upper portion of the agricultural field 40. That is, the closed state of the curtain 20 is a state in which the sheet-like curtain 20 is drawn out so as to face the roof 100 in the outer shell 10. Then, the curtain 20 in the closed state attenuates light that has passed through the roof 100 and entered the outer shell 10. The open state of the curtain 20 is a state in which the curtain 20 is converged, and the inner surface of the roof 100 is exposed in the outer shell 10 when viewed from below. Then, the curtain 20 in the open state does not attenuate the light that has passed through the roof 100 and entered the outer shell 10.

As shown in FIGS. 2A and 2B, the curtain 20 includes a first curtain 21 and a second curtain 22. Each of the first curtain 21 and the second curtain 22 is configured to be deformable between a closed state and an open state independently of each other. The first curtain 21 and the second curtain 22 are synthetic resin films or nets and have a function of attenuating sunlight. The transmissivity of the first curtain 21 and the second curtain 22 is set to 65% or more and 75% or less, for example. Note that the light transmittance may be set smaller. For example, polyolefin is selected as the material forming the first curtain 21 and the second curtain 22.

The fixed end (one end) of the first curtain 21 is fixed to the upper end (or near the upper end) of the first side surface 101. The first curtain 21 in the open state converges in a state of being wound in a roll shape at the upper end (or near the upper end) of the first side surface 101. And the 1st curtain 21 covers the lower surface side of the roof 100 gradually because the front-end | tip (other end) which is not fixed is pulled toward the downward direction of the vertex of the roof 100. FIG. When the leading end of the first curtain 21 is further pulled, the leading end of the first curtain 21 reaches below the apex of the roof 100 and a closed state in which half of the roof 100 (the first side surface 101 side) is covered from below. Moreover, the 1st curtain 21 will be in an open state from a closed state because the 1st curtain 21 is wound up and converged.

The fixed end (one end) of the second curtain 22 is fixed to the upper end (or near the upper end) of the second side surface 102, and the second curtain 22 in the open state is at the upper end (or near the upper end) of the second side surface 102. It is converged in a state of being wound up in a roll shape. And the 2nd curtain 22 covers the lower surface side of the roof 100 gradually because the front-end | tip (other end) which is not fixed is pulled toward the downward direction of the vertex of the roof 100. FIG. When the tip of the second curtain 22 is further pulled, the tip of the second curtain 22 reaches below the apex of the roof 100, and a closed state in which half of the roof 100 (the second side surface 102 side) is covered from below. Moreover, the 2nd curtain 22 will be in an open state from a closed state because the 2nd curtain 22 is wound up and converged.

That is, the first curtain 21 and the second curtain 22 are opened by being wound in a roll shape, and are drawn obliquely upward toward the center of the outer shell 10 from the state wound in the roll shape. Closed. Moreover, the 1st curtain 21 and the 2nd curtain 22 may be in an open state by being folded in a bellows shape, and may be in a closed state by being pulled out from the state in which the bellows is folded.

When the first curtain 21 is in a closed state, the lower surface of the first curtain 21 forms a first inclined surface 210 that extends obliquely upward from the upper end of the first side surface 101 toward the apex of the roof 100. Further, when the second curtain 22 is in a closed state, the lower surface of the second curtain 22 forms a second inclined surface 220 that extends obliquely upward from the upper end of the second side surface 102 toward the apex of the roof 100. And each front-end | tip of the 1st curtain 21 and the 2nd curtain 22 is mutually approaching, and the curtain 20 is formed in the mountain shape where a vertex extends linearly along the 1st direction X1.

The outer shell 10 is provided with a support member that supports the closed first curtain 21 that extends obliquely upward from the upper end of the first side surface 101 toward the top of the roof 100. It deform | transforms between a closed state and an open state along the said support member. In addition, the outer shell 10 is provided with a support member that supports the closed second curtain 22 that extends obliquely upward from the upper end of the second side surface 102 toward the top of the roof 100. It deform | transforms between a closed state and an open state along the said support member.

For the supporting members that support the first curtain 21 and the second curtain 22, for example, a metal frame such as aluminum, stainless steel, or iron, or a resin frame is used. However, the support member may not be a member having high rigidity such as a metal frame or a resin frame. The support member may be any member that can support the first curtain 21 and the second curtain 22 so as not to drop too much downward. For example, the support member may be made of a flexible material such as a rope, a metal wire, or a resin wire.

As a method for deforming the first curtain 21 and the second curtain 22 between the open state and the closed state, for example, a driving force of a power source such as a motor is applied to the first curtain 21 and the second curtain 22 via a driving mechanism. There is a way to communicate. Also, the first curtain 21 and the second curtain 22 can be deformed between the open state and the closed state by a person pulling the string connected to the first curtain 21 and the second curtain 22. Note that a specific method for opening and closing the curtain is well known, and detailed description thereof is omitted.

Furthermore, as shown in FIG. 1, the agricultural house 1 includes a window 25 in the outer shell 10. The window 25 is movable between an open position for allowing ventilation between the inside and the outside of the outer shell 10 and a closed position for blocking the ventilation between the inside and the outside of the outer shell 10. The window 25 is provided on each of the first side surface 101 and the second side surface 102. The window 25 adjusts the ventilation resistance of air when ventilating between the inside and the outside of the outer shell 10 by adjusting the opening degree. The windows 25 on the first side surface 101 and the second side surface 102 are independently driven by a driving device. The driving device includes a power source such as a motor, and includes driving mechanisms respectively corresponding to the windows 25.

Next, three first intake fans 31 a and three second intake fans 31 b are arranged on the upper side of the first wife surface 103 of the agricultural house 1. The three first intake fans 31a are arranged in the second direction X2 near the center of the first wife surface 103 in the second direction X2. The three second intake fans 31b are arranged in the second direction X2 below the three first intake fans 31a. Below the three second intake fans 31b, there are provided entrances for people to enter and exit. The first intake fan 31a and the second intake fan 31b are referred to as the intake fan 31 when not distinguished from each other.

Also, three first exhaust fans 32a and three second exhaust fans 32b are arranged above the second wife surface 104 of the agricultural house 1. The three first exhaust fans 32a are arranged in the second direction X2 near the center of the second wife surface 104 in the second direction X2. The three second exhaust fans 32b are arranged below the three first exhaust fans 32a in the second direction X2. The first exhaust fan 32a and the second exhaust fan 32b are referred to as the exhaust fan 32 when not distinguished from each other.

The intake fan 31 and the exhaust fan 32 ventilate the agricultural house 1 by mechanical ventilation, and contribute to the adjustment of the internal environment (internal temperature, internal humidity, etc.) of the agricultural house 1.

In the agricultural house 1, the internal environment of the agricultural house 1 is controlled by controlling the operation of the equipment such as the curtain 20, the window 25, the intake fan 31, and the exhaust fan 32. As a result, it is possible to prepare an environment for growing the plant body 50 in the agricultural house 1.

Hereinafter, the curtain 20, the window 25, the intake fan 31, and the exhaust fan 32 will be described in detail with reference to FIGS. 2A, 2B, 3A, 3B, 4A, and 4B.

The closed curtain 20 is formed in a shape like a gable roof whose apex extends along the first direction X <b> 1 by the first curtain 21 and the second curtain 22. That is, the internal space 13 of the outer shell 10 is divided into an upper space 13a and a lower space 13b by the closed curtain 20 (see FIGS. 2A and 2B). The upper space 13 a is a space above the curtain 20, and the lower space 13 b is a space below the curtain 20. The plant body 50 exists in the lower space 13b.

As shown in FIG. 2A, the first intake fan 31a is provided on the first wife face 103 so as to face the upper space 13a. The second intake fan 31b is provided on the first wife surface 103 so as to face the vicinity of the upper end of the lower space 13b. That is, the first intake fan 31a is disposed above the curtain 20 and sends outside air into the upper space 13a. The second intake fan 31b is disposed below the curtain 20 and sends outside air into the lower space 13b.

Further, as shown in FIG. 2B, the first exhaust fan 32a is provided on the second end face 104 so as to face the upper space 13a. The second exhaust fan 32b is provided on the second end face 104 so as to face the vicinity of the upper end of the lower space 13b. That is, the first exhaust fan 32a is disposed above the curtain 20, and discharges the air in the upper space 13a to the outside. The second exhaust fan 32b is disposed below the curtain 20, and discharges the air in the lower space 13b to the outside.

In the summer daytime, the first intake fan 31a, the second intake fan 31b, the first exhaust fan 32a, and the second exhaust fan 32b usually operate (rotate), and the first side face 101, the second exhaust fan 32b operate (rotate). The windows 25 on the side surfaces 102 are open.

In the daytime in summer, sunlight may enter the outer shell 10 and the temperature in the internal space 13 may rise above a predetermined temperature. In such a case, the amount of sunlight directly irradiated to the lower space 13b where the plant body 50 exists is reduced by closing the curtain 20. And in the lower space 13b, high temperature air moves upward. Therefore, the high temperature air in the lower space 13b is discharged to the outside by the second exhaust fan 32b (see FIG. 4A). Further, the second intake fan 31b sends outside air having a temperature lower than that of the lower space 13b into the lower space 13b (see FIG. 4A).

Furthermore, the high-pressure air in the lower space 13b moves upward, so that the air pressure below the lower space 13b is lower than the air pressure above the lower space 13b. Moreover, the atmospheric | air pressure below the lower space 13b may become low compared with external atmospheric pressure (negative pressure state). As a result, outside air is efficiently taken into the lower space 13b through the open window 25, and ventilation is further promoted.

Further, by opening the curtain 20, the upper space 13a and the lower space 13b in the outer shell 10 communicate with each other to form one internal space 13 (see FIGS. 3A and 3B). When the curtain 20 is in the open state, the amount of sunlight directly irradiated on the plant body 50 can be increased. The hot air moves upward in the internal space 13. Thus, the first exhaust fan 32a and the second exhaust fan 32b discharge the high-temperature air in the internal space 13 to the outside, and the first intake fan 31a and the second intake fan 31b in the internal space 13 The high-temperature air is discharged outside (see FIG. 4B).

Furthermore, when the high-temperature air in the internal space 13 moves upward, the air pressure below the internal space 13 becomes lower than the air pressure above the internal space 13. Moreover, the atmospheric | air pressure below the internal space 13 may become low compared with external atmospheric pressure (negative pressure state). As a result, outside air is efficiently taken into the internal space 13 through the open window 25, and ventilation is further promoted.

The agricultural house 1 of this embodiment includes at least one first intake fan 31a, at least one second intake fan 31b, at least one first exhaust fan 32a, and at least one second exhaust fan. What is necessary is just to provide the fan 32b.

Further, it is preferable that the total amount of air sent by the plurality of intake fans 31 into the outer shell 10 is smaller than the total amount of air discharged by the plurality of exhaust fans 32 to the outside of the outer shell 10. In particular, the total amount of air that the three first intake fans 31 a send into the outer shell 10 is preferably smaller than the total amount of air that the three first exhaust fans 32 a exhaust out of the outer shell 10. The total amount of air that the three second intake fans 31 b send into the outer shell 10 is preferably smaller than the total amount of air that the three second exhaust fans 32 b exhaust out of the outer shell 10.

Specifically, when the number of intake fans 31 and the number of exhaust fans 32 are the same and different from each other, a fan having a smaller air volume than the exhaust fan 32 may be used as the intake fan 31.

Further, when the intake fan 31 and the exhaust fan 32 are fans of the same specification, the number of intake fans 31 may be smaller than the number of exhaust fans 32.

When the first intake fans 31a and the first exhaust fans 32a have the same number and different specifications, the first intake fan 31a has a smaller air volume than the first exhaust fan 32a. May be used.

Further, when the first intake fan 31a and the first exhaust fan 32a are fans of the same specification, the number of the first intake fans 31a may be smaller than the number of the first exhaust fans 32a.

When the second intake fans 31b and the second exhaust fans 32b have the same number and different specifications, the second intake fan 31b has a smaller air volume than the second exhaust fan 32b. May be used.

Further, when the second intake fan 31b and the second exhaust fan 32b are fans of the same specification, the number of the second intake fans 31b may be smaller than the number of the second exhaust fans 32b.

In this case, if the curtain 20 is in a closed state, the lower space 13b can be easily brought into a negative pressure state. Therefore, since the atmospheric pressure in the lower space 13b is lower than the outside, outside air is more efficiently taken into the lower space 13b through the open window 25, and ventilation is further promoted.

Moreover, if the curtain 20 is in the open state, the internal space 13 can be easily brought into a negative pressure state. Therefore, since the atmospheric pressure in the internal space 13 is lower than the outside, the outside air is more efficiently taken into the internal space 13 through the open window 25 and ventilation is further promoted.

Also, an air flow is generated in the outer shell 10 by the outside air taken in through the open window 25. And by the airflow generated in the outer shell 10, the humidity around the plant body 50 can be lowered and the transpiration of the plant body 50 can be promoted.

In addition, although switching of each operation | movement of the curtain 20, the window 25, the fan 31 for intake, and the fan 32 for exhaust_gas | exhaustion is assumed to be performed by human manual work, it is also possible to automate. In the case of automation, the agricultural house 1 further includes a control device 90 (see FIG. 1) and a plurality of sensors. Each of the plurality of sensors detects the temperature and humidity of the upper space 13a, the lower space 13b, the outside air, the amount of solar radiation in the outer shell 10, and outputs the detection result to the control device 90. In addition, the control device 90 includes a timer device that measures the season, time, and the like. The control device 90 provides each of the curtain 20, the window 25, the intake fan 31, and the exhaust fan 32 so that an environment suitable for the plant body 50 is obtained according to the detection result, season, and time of each of the plurality of sensors. Control the behavior.

In conventional agricultural houses, the fan airflow by opening and closing states of a curtain is greatly changed, the open state of the curtain, it is difficult to ventilate by a fan efficiently in both closed.

Also, a conventional agricultural house may be configured to provide an openable and ventilated skylight on the roof to discharge high-temperature air near the roof to the outside. However, providing an openable skylight on the roof complicates the structure of the agricultural house and also causes rain leaks.

On the other hand, in the agricultural house 1 of the present embodiment, the conventional problem is solved by providing the fans above and below the closed curtain 20 as described above. Specifically, when the curtain 20 is in a closed state, the lower space 13b is ventilated by the second intake fan 31b and the second exhaust fan 32b in the lower space 13b in which the plant body 50 is present, so that the lower space The temperature of 13b can be lowered. When the curtain 20 is in the open state, the first intake fan 31a, the second intake fan 31b, the first exhaust fan 32a, and the second exhaust fan 32b in the internal space 13 where the plant body 50 exists are Ventilation of the internal space 13 is performed, and the temperature of the internal space 13 can be lowered.

Therefore, in the agricultural house 1 of the present embodiment, the curtain 20 can be efficiently ventilated in accordance with the space where the plant body 50 exists in both the closed state and the open state. As a result, in the agricultural house 1, it is possible to efficiently ventilate and lower the internal temperature regardless of the open / closed state of the curtain 20. In addition, since it is not necessary to provide an openable skylight on the roof 100, the structure can be simplified, and rain leakage is less likely to occur.

Further, in the agricultural house 1, by providing the windows 25 on the first side face 101 and the second side face 102, outside air is efficiently taken into the inside through the windows 25, and ventilation is further promoted.

(Modification 1 of Embodiment 1)
A first modification of the first embodiment will be described with reference to FIG.

In the agricultural house 1 according to the first modification of the first embodiment, the curtain 20 includes a first curtain 21A and a second curtain 22A. When the curtain 20 is in the closed state, a gap 23 is formed between the tip of the first curtain 21A and the tip of the second curtain 22A. That is, the maximum pull-out amount of each of the first curtain 21A and the second curtain 22A is configured to be smaller than the maximum pull-out amount of each of the first curtain 21 and the second curtain 22, and the gap 23 is the first It is formed in a rectangular shape along the direction X1. Therefore, when the curtain 20 is in the closed state, the upper space 13a and the lower space 13b communicate with each other through the gap 23. That is, the curtain 20 in the closed state includes a gap 23 as an opening that allows the upper space 13a and the lower space 13b to communicate with each other.

When the curtain 20 is closed, the hot air in the lower space 13b rises. At this time, the high-temperature air in the lower space 13b rises toward the gap 23 along the first inclined surface 210 and the second inclined surface 220, and moves into the upper space 13a through the gap 23. That is, since the high-temperature air in the lower space 13b moves into the upper space 13a, the temperature rise in the lower space 13b can be further suppressed when the curtain 20 is in the closed state.

Further, the high-temperature air in the lower space 13b moves into the upper space 13a, so that the air pressure in the lower space 13b becomes lower than the air pressure in the upper space 13a. Therefore, by opening the windows 25 on the first side surface 101 and the second side surface 102, outside air is more efficiently taken into the lower space 13b through the window 25, and ventilation is further promoted.

Furthermore, high-temperature air in the lower space 13b moves into the upper space 13a, and outside air is taken in from the window 25, whereby an air flow is generated in the lower space 13b. Therefore, it is possible to suppress the generation of a high humidity environment around the plant body 50. As a result, the disease of the plant body 50 is less likely to occur, and further the transpiration of the plant body 50 can be promoted.

And in the modification 1 of Embodiment 1, when the curtain 20 is a closed state, the high temperature air in the upper space 13a is discharged | emitted outside by the 1st exhaust fan 32a. The first intake fan 31a sends outside air having a temperature lower than that of the upper space 13a into the upper space 13a.

Therefore, in the agricultural house 1 according to the first modification of the first embodiment, when the curtain 20 is in the closed state, the lower space 13b in which the plant body 50 is present can be ventilated more efficiently.

(Modification 2 of Embodiment 1)
A second modification of the first embodiment will be described with reference to FIGS.

The agricultural house 1 of Modification 2 of Embodiment 1 further includes a blower fan 60 in the lower space 13b of Modification 1 of Embodiment 1. 6 and 7, the three blower fans 60 are provided. The three blower fans 60 are arranged side by side in the second direction X2 between the wife surface 103 and the flange 41, and generate an air flow from the wife surface 103 toward the wife surface 104.

And when the curtain 20 is in the closed state, the blower fan 60 generates an air flow from the wife surface 103 toward the wife surface 104 in the lower space 13b. Therefore, since the air in the lower space 13b is agitated, the temperature variation in the lower space 13b can be reduced.

Further, when the curtain 20 is in the open state, the blower fan 60 generates an air flow from the wife surface 103 toward the wife surface 104 in the internal space 13. Therefore, since the air in the internal space 13 is agitated, the temperature variation in the internal space 13 can be reduced.

Moreover, it is possible to suppress the generation of a high humidity environment around the plant body 50 due to the airflow generated by the blower fan 60. As a result, the disease of the plant body 50 is less likely to occur, and further the transpiration of the plant body 50 can be promoted.

The airflow generated by the blower fan 60 is relatively slow, and the specifications of the blower fan 60 are determined so that the flow velocity of the airflow hitting the plant body 50 is, for example, 1 (m / s) or less.

6 and 7, the three blower fans 60 are installed so that the blowing directions are the same, and generate an air flow from the end face 103 side toward the end face 104 side. However, the agricultural house 1 has both a blower fan that generates an airflow from the wife surface 103 side to the wife surface 104 side and a fan that generates an airflow from the wife surface 104 side to the wife surface 103 side. You may provide in the space 13b. For example, the agricultural house 1 includes two blower fans arranged in the center of the outer shell 10 in the first direction X1 instead of the three blower fans 60 described above. The two blower fans are arranged side by side in the second direction X2. The two blower fans respectively form airflows in opposite directions along the first direction X1. As a result, an air flow that circulates in the outer shell 10 is formed by the two blower fans. Accordingly, since the air in the internal space 13 or the lower space 13b is further agitated, the temperature variation in the internal space 13 or the lower space 13b can be further reduced.

The agricultural house 1 may include three or more blower fans arranged in the second direction X2 in the center of the outer shell 10 in the first direction X1. In this case, the three or more blower fans generate a blower fan that generates an airflow in the direction from the end face 103 side to the end face 104 side, and an airflow in the direction from the end face 104 side to the end face 103 side. A fan is mixed. As a result, an airflow that circulates in the outer shell 10 is formed by three or more blower fans.

Further, it is preferable that the airflow in the direction from the wife surface 103 side to the wife surface 104 side and the airflow in the direction from the wife surface 104 side to the wife surface 103 side have the same air volume.

(Modification 3 of Embodiment 1)
A third modification of the first embodiment will be described with reference to FIGS.

The agricultural house 1 of the third modification of the first embodiment further includes a mist generating device 70 in the lower space 13b of the second modification of the first embodiment.

The mist generating device 70 includes a water supply pipe 71 through which water is supplied from a water supply tank or the like via a pump. A number of nozzles 72 are connected to the water supply pipe 71, and water is sprayed from the nozzles 72 when water is passed through the water supply pipe 71. That is, the mist generator 70 ejects mist in which water is made into fine particles. The mist ejected from the nozzle 72 falls on the plant body 50. Depending on the shape of the nozzle 72, the sprayed water particles can be made fine and stay in the air.

The water supply pipe 71 is fixed at a fixed position in the lower space 13b. Therefore, by adjusting the pressure for supplying water to the water supply pipe 71, it becomes possible to spray the mist ejected from the nozzle 72 to a desired location.

The mist is used for lowering the ambient temperature of the plant body 50 and the plant body 50 by taking away the heat of vaporization. That is, since the plant body 50 and the surroundings of the plant body 50 can be cooled using vaporization of mist, the interior space 13 can be cooled more efficiently. Moreover, mist may be used for spraying of a chemical | medical agent.

The airflow created by the blower fan 60 serves to diffuse the mist blown out from the nozzle 72 in the outer shell 10 and spread the mist to the communities of the plant body 50. Moreover, vaporization of the mist adhering to the plant body 50 is accelerated | stimulated when an airflow touches the plant body 50. FIG. That is, the air flow created by the blower fan 60 can increase the speed at which the temperature of the community of the plant body 50 is lowered by increasing the speed at which the mist adhering to the plant body 50 is vaporized. That is, the plant body 50 is cooled more efficiently.

(Embodiment 2)
Agricultural houses generally have a large amount of heat released from the roof. Therefore, in order to prevent heat dissipation from the surface of the agricultural house at low temperatures in winter, the lower part of the roof may be further covered with a fixed covering member. In an agricultural house, when the lower part of the roof is covered with a fixed covering member, a heat insulating layer is formed between the roof and the covering member, reducing the amount of heat released from the roof and improving the heat insulating performance of the agricultural house. To do. However, when the lower part of the roof is covered with a fixed covering member, hot air tends to stay above the agricultural house at high temperatures in summer.

Therefore, in the present embodiment, a configuration will be described in which high-temperature air is unlikely to stay above the agricultural house even when the lower part of the roof is covered with a fixed covering member. The fixed covering member does not include an opening / closing mechanism like the curtain 20 and always covers the lower part of the roof.

10A and 10B show the configuration of the agricultural house 1A of the present embodiment. The agricultural house 1A of the present embodiment further includes a covering member 80 that is fixed to the agricultural house 1 of the first embodiment. 10A and 10B, a covering member 80 is added to the configuration of the first embodiment (see FIGS. 2A and 2B). Note that in the agricultural house 1A, the same components as those in the agricultural house 1 of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

The covering member 80 is formed of a translucent member. The covering member 80 uses a synthetic resin film having translucency (desirably transparent). The synthetic resin film used for the covering member 80 is selected from polyvinyl chloride, polyolefin, fluororesin, and the like. The covering member 80 may be a glass having translucency.

The covering member 80 is formed in a rectangular sheet shape, and is installed above the closed curtain 20 so as to face the lower surface of the roof 100 in the outer shell 10. One end of the covering member 80 in the second direction X2 is on the inner surface of the outer shell 10 along the first direction X1 at the upper end (or near the upper end) of the first side surface 101 where the fixed end of the first curtain 21 is disposed. It is fixed. The other end of the covering member 80 in the second direction X2 is on the inner surface of the outer shell 10 along the first direction X1 at the upper end (or near the upper end) of the second side surface 102 where the fixed end of the second curtain 22 is disposed. Is fixed. The covering member 80 extends obliquely upward from one end in the second direction X2 toward a predetermined position directly below the apex of the roof 100, and extends from the other end in the second direction X2 to a predetermined position immediately below the apex of the roof 100. Extending diagonally upward. That is, the covering member 80 is formed in a mountain shape whose apex extends linearly along the first direction X1.

For the support member that supports the covering member 80, for example, a metal frame such as aluminum, stainless steel, or iron, or a resin frame is used. However, the support member may not be a member having high rigidity such as a metal frame or a resin frame. The support member only needs to be a member that can support the covering member 80 so as not to be lowered too much, and a flexible material such as a rope, a metal wire, or a resin wire can also be used.

The covering member 80 described above is formed in a shape like a gable roof whose apex extends along the first direction X1, and is disposed between the roof 100 and the curtain 20 in the closed state. That is, the roof 100 is above the covering member 80, and the closed curtain 20 is below the covering member 80. In the inner space 13 of the outer shell 10, the upper space 13a, which is a space above the closed curtain 20, is divided into a first upper space 131 and a second upper space 132 (see FIGS. 10A and 10B). . The first upper space 131 is a space above the covering member 80, and the second upper space 132 is a space below the covering member 80.

And the agricultural house 1A is provided with the fixed covering member 80 below the roof 100, so that the first upper space 131 becomes a heat insulating layer, the amount of heat released from the roof 100 is reduced, and the heat insulating performance is improved. improves. As a result, the agricultural house 1 </ b> A can suppress a decrease in temperature around the agricultural field 40 without heating the air in the internal space 13 with a heater or the like in winter or summer night. Furthermore, even when the air in the internal space 13 is heated by a heater or the like, the operating cost (fuel cost, electricity cost, etc.) of the heater or the like can be reduced.

Further, as shown in FIG. 10A, three first intake fans 31a are provided on the first wife surface 103 in the second direction X2 so as to face the upper space 13a. Of the three first intake fans 31 a, the central first intake fan 31 a is provided on the first wife surface 103 so as to face the first upper space 131. Of the three first intake fans 31 a, the two first intake fans 31 a on both sides are provided on the first wife surface 103 so as to face the second upper space 132. That is, the first first intake fan 31 a is disposed above the covering member 80 and sends outside air into the first upper space 131. The first intake fans 31 a on both sides are disposed below the covering member 80 and send outside air into the second upper space 132.

Further, as shown in FIG. 10B, three first exhaust fans 32a are provided on the second end face 104 in the second direction X2 so as to face the upper space 13a. Of the three first exhaust fans 32 a, one central first exhaust fan 32 a is provided on the second wife surface 104 so as to face the first upper space 131. Of the three first exhaust fans 32 a, the two first exhaust fans 32 a on both sides are provided on the second wife surface 104 so as to face the second upper space 132. That is, the first first exhaust fan 32a is disposed above the covering member 80, and discharges the air in the first upper space 131 to the outside. The first exhaust fans 32a on both sides are disposed below the covering member 80, and discharge the air in the second upper space 132 to the outside.

Although the size of the first intake fan 31a shown in FIG. 10A and the size of the first intake fan 31a shown in FIG. 2A are different from each other, the size of the first intake fan 31a in the drawing is the actual size. Is not reflected. Further, the size of the first exhaust fan 32a shown in FIG. 10B and the size of the first exhaust fan 32a shown in FIG. 2B are different from each other, but the size of the first exhaust fan 32a in the drawing is the actual size. Is not reflected. That is, the size of the fan in the figure is appropriately set for each figure for the sake of explanation.

In the summer daytime, the first intake fan 31a, the second intake fan 31b, the first exhaust fan 32a, and the second exhaust fan 32b usually operate (rotate), and the first side face 101, the second exhaust fan 32b operate (rotate). The windows 25 (see FIG. 1) on the side surfaces 102 are in an open state.

In the summer daytime, sunlight may enter the outer shell 10 and the temperature in the internal space 13 may rise above a predetermined temperature. In such a case, the amount of sunlight directly irradiated to the lower space 13b where the plant body 50 exists is reduced by closing the curtain 20. Then, the high temperature air in the lower space 13b is discharged to the outside by the second exhaust fan 32b. Further, the second intake fan 31b sends outside air having a temperature lower than that of the lower space 13b into the lower space 13b. Furthermore, the outside air is efficiently taken into the lower space 13b through the open window 25 (see FIG. 1), and ventilation is further promoted.

Also, the first first exhaust fan 32a discharges high-temperature air in the first upper space 131 formed between the roof 100 and the covering member 80 to the outside. Further, the central first intake fan 31 a sends outside air having a temperature lower than that of the first upper space 131 into the first upper space 131. Therefore, it is difficult for hot air to stay in the first upper space 131.

Also, the first exhaust fans 32a on both sides exhaust high temperature air in the second upper space 132 formed between the curtain 20 and the covering member 80 to the outside. Further, the first intake fans 31 a on both sides send outside air having a temperature lower than that of the second upper space 132 into the second upper space 132. Therefore, it is difficult for hot air to stay in the second upper space 132.

In the agricultural house 1A, it is only necessary that at least one first intake fan 31a faces the first upper space 131 and at least one first intake fan 31a faces the second upper space 132. Further, in the agricultural house 1 </ b> A, it is sufficient that at least one first exhaust fan 32 a faces the first upper space 131 and at least one first exhaust fan 32 a faces the second upper space 132. That is, at least one first intake fan 31a and at least one first exhaust fan 32a are provided facing the first upper space 131 so that the intake and exhaust of the first upper space 131 are performed. Just do it. In addition, at least one first intake fan 31 a and at least one first exhaust fan 32 a are provided facing the second upper space 132 so that the second upper space 132 is sucked and exhausted. Just do it.

As described above, the agricultural house 1A includes the fixed covering member 80 below the roof 100, so that the amount of heat released from the roof 100 is reduced and the heat insulation performance is improved. Furthermore, when the curtain 20 is in the closed state, the first upper space 131 formed between the roof 100 and the covering member 80 and the second upper space formed between the curtain 20 and the covering member 80. It becomes difficult for hot air to stay in 132.

Further, by opening the curtain 20, the second upper space 132 and the lower space 13b in the outer shell 10 communicate with each other, and the amount of sunlight directly irradiated on the plant body 50 can be increased. . In the agricultural house 1A, the internal space 13 when the curtain 20 is in an open state is divided into a first upper space 131 and a space composed of a second upper space 132 and a lower space 13b. Also in this case, the first exhaust fan 32a and the second exhaust fan 32b discharge the high-temperature air in the internal space 13 to the outside, and the first intake fan 31a and the second intake fan 31b extract the outside air. It can be sent into the internal space 13.

Therefore, in the agricultural house 1A, the heat insulation performance is improved by the fixed covering member 80, and high-temperature air hardly stays above the internal space 13 regardless of whether the curtain 20 is in the closed state or the open state. Become.

(Modification 1 of Embodiment 2)
Modification 1 of Embodiment 2 will be described with reference to FIGS. 11A and 11B.

As shown in FIG. 11A, the agricultural house 1 </ b> A according to the first modification of the second embodiment is configured so that the two first intake fans 31 a face both the first upper space 131 and the second upper space 132. It is provided on each one face 103. Furthermore, as shown in FIG. 11B, the agricultural house 1 </ b> A of the first modification of the second embodiment is such that the two first exhaust fans 32 a face both the first upper space 131 and the second upper space 132. Are provided on the second wife surface 104 respectively.

Although the size of the first intake fan 31a shown in FIG. 11A and the size of the first intake fan 31a shown in FIG. 2A are different from each other, the size of the first intake fan 31a in the drawing is the actual size. Is not reflected. Further, the size of the first exhaust fan 32a shown in FIG. 11B and the size of the first exhaust fan 32a shown in FIG. 2B are different from each other, but the size of the first exhaust fan 32a in the drawing is the actual size. Is not reflected. That is, the size of the fan in the figure is appropriately set for each figure for the sake of explanation.

The intake port of the first intake fan 31a faces the end of the covering member 80 on the first wife surface 103 side. That is, the end of the covering member 80 on the first face 103 side crosses the intake port of the first intake fan 31a. Therefore, the first intake fan 31a can send outside air both above and below the covering member 80.

Further, the exhaust port of the first exhaust fan 32a faces the end of the covering member 80 on the second face surface 104 side. That is, the end of the covering member 80 on the second face surface 104 side crosses the exhaust port of the first exhaust fan 32a. Therefore, the first exhaust fan 32a can discharge both the air above and below the covering member 80 to the outside.

In the summer daytime, the first intake fan 31a, the second intake fan 31b, the first exhaust fan 32a, and the second exhaust fan 32b usually operate (rotate), and the first side face 101, the second exhaust fan 32b operate (rotate). The windows 25 (see FIG. 1) on the side surfaces 102 are in an open state.

When the curtain 20 is closed during the daytime in summer, the first exhaust fan 32a discharges high-temperature air in the first upper space 131 and the second upper space 132 to the outside. Furthermore, the first intake fan 31 a sends outside air having a temperature lower than that in the first upper space 131 and the second upper space 132 into the first upper space 131 and the second upper space 132. Therefore, high-temperature air is less likely to stay in the first upper space 131 and the second upper space 132.

As described above, in the agricultural house 1A of the first modification of the second embodiment, the first intake fan 31a sends outside air into both the first upper space 131 and the second upper space 132. In the agricultural house 1A according to the first modification of the second embodiment, the first exhaust fan 32a exhausts the air in both the first upper space 131 and the second upper space 132 to the outside.

Accordingly, since one first intake fan 31a performs intake of both the first upper space 131 and the second upper space 132, the number of first intake fans 31a can be further reduced, and further The installation space for the one intake fan 31a can be further reduced. In addition, since one first exhaust fan 32a exhausts both the first upper space 131 and the second upper space 132, the number of first exhaust fans 32a can be further reduced, and further The installation space for one exhaust fan 32a can be made smaller.

Further, by opening the curtain 20, the second upper space 132 and the lower space 13b in the outer shell 10 communicate with each other, and the amount of sunlight directly irradiated on the plant body 50 can be increased. . Also in this case, the first exhaust fan 32a and the second exhaust fan 32b discharge the high-temperature air in the internal space 13 to the outside, and the first intake fan 31a and the second intake fan 31b discharge the outside air to the inside. It can be sent to the space 13.

Therefore, in the agricultural house 1A, the heat insulation performance is improved by the fixed covering member 80, and high-temperature air hardly stays above the internal space 13 regardless of whether the curtain 20 is in the closed state or the open state. Become.

The agricultural house 1A shown in FIGS. 11A and 11B includes at least one first intake fan 31a, at least one second intake fan 31b, at least one first exhaust fan 32a, and at least one first exhaust fan 31a. Two exhaust fans 32b may be provided.

Further, the agricultural house 1A may be provided with a plurality of covering members 80 below the roof 100 at intervals in the vertical direction. In this case, since a heat insulating layer is also formed between each of the plurality of covering members 80, the heat insulating performance of the agricultural house 1A is further improved. Further, the agricultural house 1 </ b> A has an exhaust fan that discharges high-temperature air in each space sandwiched between the plurality of covering members 80 to the outside, and an intake air that sends outside air into each space sandwiched between the plurality of covering members 80. By further providing the fan, high-temperature air is less likely to stay above the internal space 13.

Further, the covering member 80 may have a shape extending horizontally along the first direction X1, and the shape is not limited to a specific shape.

In addition, also when the coating | coated member 80 is added to each structure of the modification 1, 2, 3 of Embodiment 1, the same effect as the above can be acquired.

As described above, the agricultural house 1 or 1A of the first aspect according to the embodiment includes the outer shell 10, the plurality of intake fans 31, the plurality of exhaust fans 32, and the curtain 20. The outer shell 10 has a first face 103 and a second face 104 that face each other, and the roof 100 is covered with a covering 12 (a translucent member). The plurality of intake fans 31 are provided on the first wife surface 103 and send outside air into the outer shell 10. The plurality of exhaust fans 32 are provided on the second face 104 and exhaust the air in the outer shell 10 to the outside of the outer shell 10. The curtain 20 is disposed so as to face the roof 100 in the outer shell 10. The curtain 20 is between a closed state in which light incident on the outer shell 10 through the roof 100 is dimmed and an open state in which light incident on the outer shell 10 through the roof 100 is not dimmed. It is configured to be deformable. Among the plurality of intake fans 31, one or more first intake fans 31 a are disposed above the closed curtain 20, and one or more second intake fans 31 b are provided from the closed curtain 20. It is arranged below. Among the plurality of exhaust fans 32, one or more first exhaust fans 32a are disposed above the closed curtain 20, and one or more second exhaust fans 32b are provided from the closed curtain 20. It is arranged below.

In the agricultural house 1 or 1A described above, when the curtain 20 is in a closed state, the lower space 13b is ventilated by the second intake fan 31b and the second exhaust fan 32b in the lower space 13b where the plant body 50 exists. Thus, the temperature of the lower space 13b can be lowered. When the curtain 20 is in the open state, the first intake fan 31a, the second intake fan 31b, the first exhaust fan 32a, and the second exhaust fan 32b in the internal space 13 where the plant body 50 exists are Ventilation of the internal space 13 is performed, and the temperature of the internal space 13 can be lowered. Therefore, in the agricultural house 1 or 1A of the present embodiment, the curtain 20 can be efficiently ventilated in accordance with the space where the plant body 50 exists in both the closed state and the open state.

As a result, in the agricultural house 1 or 1A, it is possible to efficiently ventilate and lower the internal temperature regardless of the open / closed state of the curtain 20. Moreover, since it is not necessary to provide an openable skylight on the roof 100, the structure can be simplified.

In the agricultural house 1 or 1A of the second aspect according to the embodiment, in the first aspect, the curtain 20 communicates the lower space 13b and the upper space 13a of the inner space 13 of the outer shell 10 in the closed state. It is preferable to provide an opening (gap 23).

In this case, since the high-temperature air in the lower space 13b moves into the upper space 13a through the gap 23, the temperature rise in the lower space 13b can be further suppressed when the curtain 20 is in the closed state. Further, the high-temperature air in the lower space 13b moves into the upper space 13a, so that the air pressure in the lower space 13b becomes lower than the air pressure in the upper space 13a. Accordingly, the outside air is more efficiently taken into the lower space 13b, and ventilation is further promoted. Moreover, an air current can be generated in the outer shell 10 to reduce the humidity around the plant body 50. Further, by generating an air flow in the outer shell 10, it is possible to suppress the generation of a high humidity environment around the plant body 50. As a result, the disease of the plant body 50 is less likely to occur, and further the transpiration of the plant body 50 can be promoted.

Moreover, in the agricultural house 1 or 1A of the 3rd aspect which concerns on embodiment, in the 1st or 2nd aspect, the outer shell 10 cross | intersects the 1st wife face 103 and the 2nd wife face 104, and mutually Opposite first side surface 101 and second side surface 102 are provided. The curtain 20 is preferably composed of a double curtain first curtain 21A and a second curtain 22A. The first curtain 21A is brought closer to the first side surface 101 side in the open state. In the closed state, the first curtain 21 </ b> A is drawn obliquely upward toward the center of the outer shell 10, and the lower surface of the first curtain 21 </ b> A becomes higher from the first side surface 101 toward the center of the outer shell 10. A first inclined surface 210 is formed. The second curtain 22A is brought closer to the second side face 102 in the open state. In the closed state, the second curtain 22A is drawn obliquely upward toward the center of the outer shell 10, and the lower surface of the second curtain 22A becomes higher from the second side surface 102 toward the center of the outer shell 10. A second inclined surface 220 is formed. In the closed state, a gap 23 is formed as an opening between the first curtain 21A and the second curtain 22A.

In this case, the high-temperature air in the lower space 13b rises toward the gap 23 along the first inclined surface 210 and the second inclined surface 220, and moves into the upper space 13a through the gap 23. That is, since the high-temperature air in the lower space 13b moves into the upper space 13a, the temperature rise in the lower space 13b can be further suppressed when the curtain 20 is in the closed state.

Further, the high-temperature air in the lower space 13b moves into the upper space 13a, so that the air pressure in the lower space 13b becomes lower than the air pressure in the upper space 13a. Accordingly, the outside air is more efficiently taken into the lower space 13b, and ventilation is further promoted.

Moreover, in the agricultural house 1 or 1A of the fourth aspect according to the embodiment, in any one of the first to third aspects, the total amount of air that the plurality of intake fans 31 send into the outer shell 10 is The plurality of exhaust fans 32 are preferably less than the total amount of air discharged from the outer shell 10.

In this case, the inside of the outer shell 10 can be easily brought into a negative pressure state. Therefore, outside air is more efficiently taken into the outer shell 10 and ventilation is further promoted. Moreover, an air current can be generated in the outer shell 10 to reduce the humidity around the plant body 50. Further, by generating an air flow in the outer shell 10, it is possible to suppress the generation of a high humidity environment around the plant body 50. As a result, the disease of the plant body 50 is less likely to occur, and further the transpiration of the plant body 50 can be promoted.

Moreover, in the agricultural house 1 or 1A of the 5th aspect which concerns on embodiment, in any one of the 1st thru | or 4th aspect, it further has the ventilation fan 60 which generates an air current in the outer shell 10. FIG. preferable.

In this case, since the air in the outer shell 10 is agitated, the temperature variation in the outer shell 10 can be reduced. Moreover, an air current can be generated in the outer shell 10 to reduce the humidity around the plant body 50. Further, by generating an air flow in the outer shell 10, it is possible to suppress the generation of a high humidity environment around the plant body 50. As a result, the disease of the plant body 50 is less likely to occur, and further the transpiration of the plant body 50 can be promoted.

Moreover, in the agricultural house 1 or 1A according to the sixth aspect according to the embodiment, in any one of the first to fifth aspects, the agricultural house 1 or 1A further includes a mist generating device 70 that generates mist inside the outer shell 10. It is preferable.

In this case, since the inside of the outer shell 10 can be cooled using the latent heat generated by evaporation of mist, the inside of the outer shell 10 can be cooled more efficiently.

Moreover, 1 A of agricultural houses of the 7th aspect which concern on embodiment are the curtains of a closed state so that it may oppose the lower surface of the roof 100 in the outer shell 10 in any one of the 1st thru | or 6th aspect. It is preferable to further include a covering member 80 installed above 20.

In this case, since the lower part of the roof 100 is covered with the covering member 80, a heat insulating layer is formed under the roof 100, the amount of heat released from the roof 100 is reduced, and the heat insulating performance of the agricultural house 1A is improved.

Moreover, the agricultural house 1A of the eighth aspect according to the embodiment includes a plurality of first intake fans 31a in the seventh aspect. It is preferable that a part of the plurality of first intake fans 31 a is disposed above the covering member 80 and the rest of the plurality of first intake fans 31 a is disposed below the covering member 80. The agricultural house 1A includes a plurality of first exhaust fans 32a. Part of the plurality of first exhaust fans 32 a is preferably disposed above the covering member 80, and the rest of the plurality of first exhaust fans 32 a is preferably disposed below the covering member 80.

In this case, high-temperature air hardly stays above the internal space 13 regardless of whether the curtain 20 is in the closed state or the open state.

In the agricultural house 1A of the ninth aspect according to the embodiment, in the seventh aspect, the first intake fan 31a is disposed so as to face both the upper and lower sides of the covering member 80, and the covering member It is preferable to send outside air to both above and below 80.

In this case, the number of first intake fans 31a can be reduced, and the installation space for the first intake fans 31a can be further reduced.

Further, in the agricultural house 1A of the tenth aspect according to the embodiment, in the ninth aspect, the first exhaust fan 32a is disposed so as to face both the upper and lower sides of the covering member 80, and the covering member It is preferable to discharge both the air above and below 80 out of the outer shell 10.

In this case, the number of first exhaust fans 32a can be reduced, and the installation space for the first exhaust fans 32a can be further reduced.

Moreover, in the agricultural house 1A of the eleventh aspect according to the embodiment, in any one of the seventh to tenth aspects, the covering member 80 is preferably a light-transmitting member.

In this case, since the covering member 80 does not diminish (or block) the light, the amount of light incident on the outer shell 10 can be adjusted by the curtain 20.

Further, the above-described embodiments and modifications are examples of the present invention. For this reason, the embodiment and the modification are not limited to the above-described configuration, and even if other than the above-described configuration, the design can be used as long as it does not depart from the technical idea of the embodiment and the modification. Of course, various changes can be made according to the above.

1,1A Agricultural house 10 Outer shell 12 Covering body (translucent member)
13 Internal space 13b Lower space 13a Upper space 20 Curtain 21, 21A First curtain 22, 22A Second curtain 23 Clearance (opening)
31 Intake Fan 31a First Intake Fan 31b Second Intake Fan 32 Exhaust Fan 32a First Exhaust Fan 32b Second Exhaust Fan 60 Blower Fan 70 Mist Generator 80 Cover Member 100 Roof 101 First Side 102 First 2 side surface 103 1st wife surface 104 2nd wife surface 210 1st inclined surface 220 2nd inclined surface

Claims (11)

An outer shell having a first face and a second face facing each other, the roof of which is covered with a translucent member;
A plurality of intake fans provided on the first wife surface for sending outside air into the outer shell;
A plurality of exhaust fans provided on the second wife surface for discharging the air in the outer shell to the outside of the outer shell;
A curtain arranged to face the roof in the outer shell,
The curtain is between a closed state in which light incident on the outer shell through the roof is dimmed and an open state in which light incident on the outer shell through the roof is not dimmed. Configured to be deformable,
Among the plurality of intake fans, one or more first intake fans are arranged above the closed curtain, and one or more second intake fans are more than the closed curtain. Placed below,
Among the plurality of exhaust fans, one or more first exhaust fans are arranged above the closed curtain, and one or more second exhaust fans are more than the closed curtain. Placed below,
Agricultural house characterized by that. The agricultural house according to claim 1, wherein the curtain includes an opening that allows the lower space and the upper space of the inner space of the outer shell to communicate with each other in the closed state. The outer shell includes a first side surface and a second side surface that intersect the first wife surface and the second wife surface and face each other,
The curtain is composed of a double curtain first curtain and a second curtain,
The first curtain is brought closer to the first side surface in the open state, and in the closed state, the first curtain is drawn obliquely upward toward the center of the outer shell, and the lower surface of the first curtain is Forming a first inclined surface that increases from the first side surface toward the center of the outer shell;
The second curtain is brought closer to the second side surface in the open state, and in the closed state, the second curtain is drawn obliquely upward toward the center of the outer shell, and the lower surface of the second curtain is Forming a second inclined surface that increases from the second side surface toward the center of the outer shell;
The agricultural house according to claim 2, wherein a gap is formed as the opening between the first curtain and the second curtain in the closed state. 4. The total amount of air sent into the outer shell by the plurality of intake fans is smaller than the total amount of air discharged from the outer shell by the plurality of exhaust fans. 5. The agricultural house according to one item. The agricultural house according to any one of claims 1 to 4, further comprising a blower fan that generates an airflow in the outer shell. The agricultural house according to any one of claims 1 to 5, further comprising a mist generating device that generates mist inside the outer shell. The coating member according to any one of claims 1 to 6, further comprising a covering member installed above the curtain in the closed state so as to face a lower surface of the roof in the outer shell. Agricultural house. A plurality of the first intake fans are provided, a part of the plurality of first intake fans is disposed above the covering member, and the rest of the plurality of first intake fans is below the covering member. Has been placed,
A plurality of the first exhaust fans are provided, and a part of the plurality of first exhaust fans is disposed above the covering member, and the rest of the plurality of first exhaust fans is below the covering member. The agricultural house according to claim 7, wherein the agricultural house is arranged. 8. The agricultural machine according to claim 7, wherein the first intake fan is disposed so as to face both above and below the covering member, and sends outside air to both above and below the covering member. House. The first exhaust fan is disposed so as to face both above and below the covering member, and exhausts air above and below the covering member to the outside of the outer shell. Item 10. Agricultural house according to item 9. The agricultural house according to claim 7, wherein the covering member is a translucent member.

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